Pipe and nut wrench



No. 618,3!3. Patented Ian. 24, I899. A. H. ADAMS.

PIPE. AND NUT WRENCH.

(Application filed Kay 25, 1898.)

(No Model.)

WXTNESSES: INVENTOR:

NITED STATES PATENT OFFICE.

AUGUST Il. ADAMS, OF PIQUA, OHIO.

PIPE AND NUT WRENCH.

SPECIFICATION forming part of Letters Patent No. 618,313, dated January 24, 1899.

Application filed May 25, 1898. Serial No. 681,663. (No model.)

To all whom it may concern.-

Be it known that 1, AUGUST 11. ADAMS, a citizen of the United States, residing at Piqua, in the county of Miami and State of Ohio, have invented certain new and useful Improvements in Adjustable Pipe and Nut W'renches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My'invention relates to an adjustable comblnation pipe-tongs and nut wrench or that class of wrenches which are adapted for general use by plumbers, gas-fitters, machinists, and others in coupling or uncoupling pipes, nuts, taps, &c., of various sizes; and it consists in certain novel features of construction and new combination and arrangement of parts, as will be more fully described hereinafter, and pointed out in the subjoined claims, in accordance with the statutes in such cases made and provided therefor.

Some of the principal objects of my invention consist in constructing a wrench without any of the objectionable features of a swinging jaw or other similarly loose and defective portions, so that the said wrench may be used upside down or underneath large bodies or in positions where the operator cannot see the nut or device to be uncoupled and where there is only a limited space to be utilized in the operation, and in providing a wrench susceptible of being'easily and quickly handled or operated by' one hand alone on either pipes, nuts, or any articles to be uncoupled, no matter how their size may vary, and that will firmly grip or grasp without slipping or skinning them and in the case of a pipe will not crush or otherwise injure it, and, further, in providing a wrench of great strength and durability by constructing it entirely of metal, and yet of so small a size and so few parts as to avoid complication, so that it may be readily and cheaply manufactured.

Referring to the accompanying drawings, illustrating my improved wrench, and in which similar numerals of reference indicate like parts throughout the several views, Figure 1 is a side elevation, partially in section, and showing in dotted lines one of the positions the parts may assume when gripping a pipe. Fig. 2 is a perspective view of the main or frame portion, terminating in the stationary handle and fixed jaw; and Fig. 3 is a perspective view of the fulcrumed supporting-block.

Referring in detail to my invention by means of the aforesaid numerals of reference as employed in the several views of the drawings, 1 indicates the frame or frame-bar, terminating at its forward end in the fixed jaw 2 (said jaw being provided with a toothed or serrated surface) and at its rear or opposite end in the stationary handle or handle-piece 3. 4indicates avertical portion of said frame suitably provided with a slotted opening 5, through which passes and plays the lever or movable handle 6. Said portions 1, 2, 3, and 4, as above enumerated, are formed integral in one rigid and continuous piece.

The lever or movable handle 6 has its forward end formed in a bearing-surface 7, between which and the toothed or serrated surface of the jaw 2 is firmly gripped the pipe or nut to be operated upon, as is shown in d0tted lines in Fig. l. Said lever or movable handle 6 is further provided with an externally-screW-threaded portion 8, which extends a sufficient distance of its length, by v which means it will permit of said lever bein g worked or turned through the internallyscrew-threaded opening 9 of the fulcrumed supporting-block 10. Said external screwthreads 8 will thus engage said internal screwthreads 9 and said lever be given a forward or backward movement, according to the desired adjustment. The fulcrumed block 10 supports said lever or movable handle by means of its bifurcated top 11, (see Fig. 3 and the dotted line in Fig. 1,) being pivoted to said frame-bar l by a fulcrumed pivot or pin 12, formed with a head at one end and having the other end tapped, so as to retain it in its position in an ordinary manner, thus pro viding the fulcrum-point on which said lever through the instrumentality of the fulcrum-block moves.

It will be readily observed that my wrench is very simple in construction, consisting of only three parts-via, the continuous'frame, the

lever, and the fulcrumed supporting-block and is not liable to get out of order, as is the case with those wrenches having a multiplicity of parts, and should it be deemed necessary to take it apart for any slight repair all that is needed is to file off one end of the fulcrum-pivot and knock it out.

I do not limit myself to the exact style, form, or position of the various parts, as they may be somewhat varied and modified Without departing from the principles or spirit of my inventionas, for example, the frame may be made of wrought or malleable metal, and the fixed jaw 2 may have its toothed or serrated gripping-surface made out of a steel plate set into the said jaw, as shown at 13in Fig. 2, which may be quickly renewed from time to time should it become worn; also, lever 6 may be provided with a wooden handle and have a screw-threaded tap end, so as to be disengaged when it is desired to take the wrench apart.

I am well aware of a few patents on wrenches wherein some of the parts are somewhat similar to some of the parts of my improved wrench. Itherefore do not claim any of the separate features of construction as shown and described herein broadly or by themselves; but

What I claim as new and as of my invention, and desire to secure by Letters Patent,

1. The combination in an adjustable pipe and nut wrench, of a continuous frame, terminating at one end in a fixed jaw and at the other end in a stationary handle; a horizontal frame-bar and a vertical portion located between said jaw and stationary handle; of a fulcrumed supporting-block fulcrumed to said frame-bar portion; of a lever or movable handle adapted to move through openings in said supporting-block and said vertical portions, all substantially as described.

2. A combination-Wrench comprising a con tinuous integral and rigid frame composed of the following portions, viz: a fixed jawprovided with a toothed or serrated gripping-surface, a frame-bar, a vertical portion having a slotted opening therein,a stationary handle; a fulcrumed supporting-block provided with an internally-screW-tln'eaded opening or bore; a lever formed with a bearing-surface at one end, a movable handle at the other, and externally-screw-threaded portion adapted to engage theinternal screw-threadsin the opening or bore in said fulcrumed supportingblock; a pivot or pin forming the fulcrumpoint for said lever; said lever adapted to pass through and playin the slotted openlng in said vertical portion, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

AUGUST H. ADAMS.

Vitnesses:

WM. H. GILBERT, LEONARD H. SHIPMAN. 

